Igniter mechanism for internal-combustion engines.



H. R. VAN DEVENTER. IGNITER MECHANISM FOR INTERNAL'COMBUSTION ENGINES.APPLICATION FILED-DEG. 24. 1914.

Patented 0012. 23,1917.

2 SHEETSSHEET (Juno-1 1 601 H. R. VAN DEVENTER, mama MECHANISM FORINTERNAL COMBUSHON memes.

APPLICATION THE-D DEC 24' 3914.

Patented Oct. 23,1917.

z SHEETS-SHEET 2 5 w undo o residing at ter and State of South Carolina,have in- MESN E ASSIGNMENTS,

JERSEY, A CORPORATION OF NEW JERSEY.

IGNITER MECHANISM FOR IN TERNAIJ-COMBUSTION ENGINES.

Specification 01' Letters Patent.

Patented Oct. 23, 1917.

Application filed December 24, 1914. Serial No. 878,931.

To all whom it may concern:

Be it known that I, HARRY RANDOLPH VAN EVENTER, a citizen of the UnitedStates,

Sumter, in the county of Suminternal combustlon engines, and has for I ecient ignition unit, self-contained and upon the movable electrode ofmagneto removed and a 'tion engines,

cylinder close association with the igniter proper of the engine.

Briefly and specifically stated, this invenigniter, a flange or framealso connected to the igniter; and carrying abutments outwardlyextending from the engine cylinder, with a magneto mounted on thebracket, carrying an actuator on its rotor or oscillator shaft, saidactuator being connected by resilient or other energy storing means,such as coil springs, with the a utments or posts on the flange orframe. The actuator, being carriedon the magneto, itself carries aprojecting member which at the proper instant in each actuation, actsthe igniter.

It is to be understood that the foregoing statement is made specific forpurposes of definition and not of limitation. One of the greatadvantages of this construction is its extreme simplicity, and the smallnumber of parts required, While adhering to a high standard ofefilciency. This unit is applicable to a great variety of internalcombus; and further advantages and features of invention will besufliciently ap parent to those skilled in the art, from the, foregoingdetailed description.

y invention is illustrated in the a'cc0mpanying drawings in'wh1eh:-

Figure 1 is a top plan, view.

Fig. 2 is a front'view'of F 1g. 1 with the portion of its shaft s own insection.

Fig. 3 is a left side view of Fig. 1, with the pull springs and parts ofthe engine removed for the sake ofclearness.

In the drawings, a section of the eng1ne is shown at 1 through which the-in fixed relation thereto, a tri the combustion 2, on the inside,contact device contact member 4 igniter body 2 projects into chamber.The igniter body carries a make-and-break consisting of the fixedsuitably insulated from and the movablecontact 3 carried on the nner endof the igniter shaft 15, journaled igniter shaft 15, the rotor shaftcarrying,

This trip lever is held normally in the position shown by the pullsprings 12 and 13 held at.their outer ends on roller bearings 10 and 11journaled at the outer ends of the posts 8 and 10 which in turn arecarried by the arms -7 and 6, respectively, the inner ends of the pullsprings taking hold of the trip lever through the roller bearings 41 and42. The right'hand arm of the trip lever 14 carries a firing finger 16whose motion is transmitted to the igniter operating arm 22 through anadjustable abutment screw 23 threaded into the end of the op- 'eratinglever. Movement of the trip lever It is effected by means of the tripfinger 18 forming a part thereof and adapted to be engaged by the end 19and rotated counter-clockwise against the tension of the pull springsuntil the end of the push rod moves out of the arc scribed by the finger18, whereupon it is suddenly returned to the normal position shown, bythe power stored in the pull springs. The operation of'the push rod isaccomplished by connecting it with a movable part ofthe engine in a wellknown manner. Each time the trip lever is suddenly released, in the.

the igniter body,

21 of the push rod tqle fixed contact separate.

torsion spr ng 24 which moves the contact 3 cf the igniter up out ofengagement with I 4. It is to be noted that-the trip lever 14 isositioned on the rotor shaft 40 in such re-- ation to the'rotor andscrew 23 so adjusted that when the trip lever is released the peak ofthe current wave generated will occur at the same instant that theigniter contacts tween the windings of the magneto 26 andl the fixedcontact 4 ,by means. of a suitable conductor 29 extending between themag-' "ang shaft for said igniter carri d neto binding post 30 and theigniter binding Electrical connection is made be-l post 31, the otherarm of the circuit being 1 the frame work as usual. 1 The timing ofignition is accomplished by the provision of an adjustable guide for thepush rod 19, said guide consisting of the roller bearing 20 mountedeccentrical' on the shaft 36 and adapted to be adjuste any about saidshaft by means ofv a arl fidiidle 37 Thus' the path of movement'of theend 21 of the push rod may be raised or lowered through differentdegrees, respectively in a relatively early or late release of the triplever, according to the adjustment of the handle 37 in a manner apidlestroke of the engine,

parent.

It is further provided that the operation of the'igniter shall beprevented during the as in the case of hit-and-miss engines, or when theexhaust I, 'valve is held open by the governor, by the pivoted to thearm use of an independent lifting means for the push rod consisting of abell crank lever 34 6 and adapted to be -movedinto the dotted lineposition. by the pin 33 on the exhaust valve push rod 32 which isactuated in a known manner at the intervals mentioned. While I haveherein shown and described indet'ail a preferred embodiment of myinvention, it is to be understood that various modifications thereof maybe made without departing from the spirit of the invention, whichmodifications are contemplated by me. Having thus described myinvention, what I claim and desire to secure by Letters v ing shaft forsaid igniter carried by said frame, an operating shaft for said magneto,saidshafts being in alinement, a trip lever ,carried by the shaft of themagneto, an arm carried by the shaft of the igniter, means carried bythe trip lever for engaging the arm carried by the shaft of the igmter,and ,means for actuating said trip lever.

, 2. An ignitcr mechanism f r internal com- ,bustion engines comprisinga supporting frame, an igniter arried by said f am a magneto mounted onsaid frame, an operatby said {frame an o crating shaft for said m gEsaid shafts in in alinement, a trip lever {carried by the s aft of themagneto, an arm ,carried by the shaft of the igniter, means gmrried bythe tri lever for engaging the .arm carried by the shaft of the igniter,opposed springs connected to said trip lever .jflIld to said frame foractuating the magneto resulting Qshaft when said trip lever is released,and means for actuatin said trip lever.

8. Anigniter inec anism 1 inte na comibustion en ines comprising a suporting frame, an ignitcr carried by said rame, a magneto mounted onsaid frame, an operating shaft for said igniter carried by said frame anoperating shaft for said magneto,

said shafts belng 1n alinement, a trip lever carried by the shaft of themagneto, an arm carried by the shaft of the igniter, means carried bythe trip lever for engaging the arm carried bythe shaft of the igniter,opposed springs and to said rams for actuating the magneto shaft whenSaid trip lever is released, said trip lever having a projecting arm,and a push rod for engaging Bald arm for setting and releasing the trip.e

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

HARRY RANDOLPH VAN DEVENTER.

Witnesses:

EDNA Islam, E. H; Rants.

connected to said trip lover" I

